Furnace attachment.



' No. 895,054. F "PAT-51ml) AUG. 4, 1mm

m R.YG.SPEER.- I I FURNACE ATTACHMENT. APPLICATION nun 3113 10, 1906. EBSEWED D20. 23, 1901.

. aforesaid journal sockets 6 noBERr o. SPEER, or ST. Louis FURNACE ATTACHMENT.

' Specification of Letters Batent.

nIs'soURI, AssIeNoR or ONE-HALF ro we. MILFORD AND ONE-HALF TO s. B. SPEER, OF ST. LoUIs, MISSOURI.

' Patented Aug. 4,1908.

Application filed March 10, 1906, Serial No. 305,267. Renewed December 23, 1907. 'Serial 1101407512, it

To all whom it may concern:

Be it known that I, ROBERT G. SPEER, a citizen of the United States of America, and a resident of the city of St; Louis, in the State of Missouri, have invented certain new and useful Improvements in Furnace Attachments, of which the following is a specificatIon.

This invention relates to a fuel saving attachment for heating and like furnaces, and has for its object to provide a simple and efficient structural formation and combination of parts whereby highly heated air is introduced into the )roducts of combustion at a point immediately above the fuel, to aid in the attainment of a perfect combustion of such )roducts, and which at the same time is adapted-for easy manipulation, so as not to interfere with the replenislunent of the fuel from time to time as required, all as will hereinafter more fully appear and be more particularly pointed out in the 'claims.

In the accompanying drawings :Figure 1 is a vertical sectional elevation on line :z:-a:.

Fig. 2 of a heating furnace and the present attachment, the air inlet pipes of the attachment being shown in elevation. Fig. 2 is a horizontal sectional plan of same. on line :2:'x Fig. 1, the air inlet pipes of the attachment being shown in elevation. Fig. 3 is a detail verticalsect-ion at right angles to Fig. 1.

Similar numerals of reference indicate like parts in the different views.

Referring to the drawings:l represents the inclosing wall of the furnace formed with the usual annular air heating chamber .2, and adapted to inclose the fire pot 3 having a fire grate 4 at its lowercnd, as usual.

5 is an annular ring arranged immediately above the fire wt 3 and provided with journal sockets 6 for the pivotal support of the counterpart members of the present appliance, hereinafter more fuliy described. Such annular ring is preferablv made in sections secured together by bolts or rivets 7 for convenient introduction into the interior of the furnace.

8 are a pair of hollow semi-circular members arranged in adjacent relation toeach other, so as to form in their normal position a horizontal circular partition above the fire 9 and 10 are trunnions. or arbors formed on said members 8, and adapted to rest in the of the annular rings for the pivotal support of said members. y

11 are lugs on the members 8 in angular relation to the trunnions 9 and 10, aforesaid, and adapted to rest upon the ring 5, aforenormal horizontal position.

12 are a pair of pipe sections passing throu h the wall of the furnace and screwing into the respective trunnions 9 of the memhers 8; said pipe sections are adapted to conduct a supply of air into the interior cavities of said members, where the same is heated before being discharged into the fire as hereinafter'set forth. Each pipe section is individual to a member 8, and is provided with a controlling register 13 at its outer end to regulate the amount of air supplied through said pipes.

14 are a series of passages extending through the respective members 8, and preferably of the cone shape shown, their vertical walls forming an integral part of the main walls of the said members. Such passages are adapted for the upward passage of the the upper )art of the furnace, and are intended to (ivide up such products and at tain a ver effective intermingling of the heated bodies of air introduced in the manner hereinafter described, and by means .of which anearly perfect combustion is attained.

15 are a series of openings formed preferably in the lower or bottom walls of the members 8, and adapted to discharge jets .of heated airinto the products of combustion, to attain the nearly perfect combustion of the said )roducts, as before stated- 16 is't e furnace door, through which the fuel is fed to the fire pot. The sill of such door is substantially on' a level with the under surface of the members 8 aforesaid, and the construction is such that the member next to said door will be temporarily turned 100 up out of the way in supplying fuel to the fire pot.

Having thus fully described my said in vention, what I claim as new and desire to secure by Letters Patent, is I 1. In a furnace attachment of the character herein described, the combination of a pair of hollow members adapted for pivotal support above. the fire pot'of a furnace and formed with so said, to support the said members in their products of combustion from t is fire pot into a series of passages extending 11o through the members and' with a series of jet orifices in a wall thereof, and air supply pipes connected to said members at their points of pivotal support, substantially as set forth.

2. In a furnace attachment of the character herein described, the combination of a pair of hollow members adapted for pivotal support above the fire pot of a furnace, and formed'with a series of assages extending through the members and with a series of jet orifices in the bottom walls thereof, and air supply pipes connected to said members at their points of pivotal, support, substantially as set forth.

3. In a furnace attachment of thecharacter herein described, the combination of a pair of hollow members adapted for pivotal support above the fire pot of a furnace and formed with a series of conical passa es eX- tending throu h the members and wit a series of jet ori ces in a wall thereof, and air supply pipes connected to said members at their points of pivotal support, substantially as set forth.

4. In a furnace attachment of thecharacter herein described, the combination of a pair of hollow members adapted for pivotal support above the fire pot of a furnace, and formed with a series of conical passa es extending through the members and wit a series of jet orifices in the bottom walls thereof,

and air supply pipes connected to said members at their points of pivotal support, substantially as set forth.

5. In a furnace attachment of the character herein described, the combination of an annular ring formed with (journal sockets, a pair of hollow members a apted for pivotal support in said sockets above the fire pot of a furnace and formed with a series of passages extending through the members and with a series of jet orifices in a wall thereof,

and air supply pipes connected to said mem bers at their points of pivotal support, substantially as set forth- 6. In a furnace attachment of the character herein described, the combination of an annular ring formed with journal sockets, a

pair of hollow members adapted for pivotal support in said sockets above the fire pot of .a furnace and formed with a series of passages extending through the members and with a series of jet orifices in the bottom walls thereof; and airsnpply pipes connected to said members at their points of pivotal support, substantially as set forth. I

7. In a furnace attachment of the character herein described the combination of an annular ring formed with 'ournal sockets, a pair of hollow members adapted for pivotal support in said sockets above the fire pot of a-furnace and formed with a series of conical passages extending through the members and with a series of jet orifices in a wall thereof, and air supply pipes connected to said members at their points of pivotal support, substantially as set forth.

8. In a furnace attachment of the character herein described, the combination of an annular ring formed with journal sockets, a pair of hollow members adapted for pivotal support in said sockets above thefire pot of a furnace and formed with a series of conical passages extending through the members and with a series of jet-orifices in the bottom walls thereof, and air supply pipes connected to said members at their points of pivotal support, substantially as set forth.

Signed at Chicago, Illinois, this 5th day of March 1906.

ROBERT G. SPEER.

Witnesses:

ROBERT Bunxs, M. H. HOLMES. 

